Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Mark Duell, MSW

Individual provider Mental Health Counselor · NPI 1720479017

Mr. Mark Duell, MSW is a Mental Health Counselor in Portland, Oregon. Registered with an NPI since 2015.

In the registry since
2015
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

847 NE 19th Ave Ste 100
Portland, OR 97232-2684
Phone: (503) 238-0769
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1720479017
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorNo
NPI enumeratedFebruary 9, 2015
Last updated in NPPESFebruary 9, 2015

Other providers in Portland